Comparison analysis on patenting and firms' performance

2014 Fiscal Year Final Research Report

• Project/Area Number: 23530278
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Applied economics
• Research Institution: Okayama University
• Principal Investigator: ZHANG Xingyuan 岡山大学, 社会文化科学研究科, 教授 (10304081)
• Co-Investigator(Kenkyū-buntansha): NAKATA Yoshifumi 同志社大学, 総合政策研究科, 教授 (50207809)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: 特許の出願行動 / 企業パフォーマンス / 国際比較

Outline of Final Research Achievements

This study pays attention on the relationship between patenting and firms’ performance, and the international comparison analysis on patenting strategy between Japanese, USA and Germany firms. Given patenting information, i.e., application and publication date, applicant name and patent citations obtained from PATSTAT, the effects of patent citations on Tobin’s Q are analyzed for Japanese listed companies. At the same time, several methods of estimating patent thickets are investigated, and the relationship between patent thickets and licensing, and licensing and patent portfolio race are examined. Furthermore, an international comparison analysis is made for software patenting activities by Japanese, USA and Germany software companies.

Free Research Field

イノベーション・生産性に関する実証研究